Techniques are disclosed for accessing sensor-based driving data prior to the installation of an application on a mobile device. Data corresponding to time intervals preceding the installation may be used to detect a trip by: identifying a first time at which the data indicates a high probability of vehicular activity and identifying a second time at which the data indicates a low probability of vehicular activity, wherein the second time instant occurs after the first time. The trip may correspond to a first time interval that extends between the first time and the second time.